Mexican Dinosaur A Game-Changer in Triceratops Evolution | Evolution of the Horned Dinosaurs
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- Опубліковано 15 жов 2024
- When people discuss ideas of how terrestrial Mesozoic vertebrate ecosystems changed over time, the most often brought up examples are the major transitions that exemplified the changes from one period of time to another - Triassic to jurassic, jurassic to cretaceous, and so on. As true as that may be, there were many other smaller transitions of biodiversity in terrestrial ecosystems in-between these world changing transitions that still had quite the impact on the flora and fauna of the time. One of the most mysterious of these relatively smaller changes is the Early cretaceous to the Late Cretaceous. This is possibly due to a poor fossil record but could also be from a lack of zealous sampling of these formations. The next most mysterious of these transitions occurred from the beginning to the end of the Late Cretaceous epoch - the Campanian to Maastrichtian ages. It’s from this more recent transition that interesting conundrums present themselves - the exact evolutionary trajectory of certain animal groups from the beginning of the late cretaceous to its abrupt end via fireball is still being pieced together as new data is added to the mix. One such piece of data has just been re-adjusted thanks to the work of scientists re-checking what had been known before - and it promises to make a hell of a lot more sense out of the evolution of one of the most famous dinosaurs ever known - Triceratops.
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Barrera Guevara D, Espinosa Chávez B, Serrano Brañas CI, de León Dávila C, Posada Martinez D, Freedman Fowler E, Fowler D. Stratigraphic Reassessment of the Mexican Chasmosaurine Coahuilaceratops magnacuerna as the First Diagnostic Dinosaur Remains from the Cerro Huerta Formation (Lower Maastrichtian) Supporting the Southern Origin of the Triceratopsini. Diversity. 2024; 16(7):390. doi.org/10.339...
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I got to say I love your music choice for your videos, they fit very well with what was happening on screen. And sometimes it's just funny to listen to a happy song while looking at a T-Rex decapitating a triceratops
In this vid I heard at least two songs that originally come from the video game Donkey Kong Country, which has a superb soundtrack. I’m definitely enjoying the music choices, as well 👍🏻
Oh man, I've been looking forward to this video! So much good stuff has been coming out of the Late Cretaceous deposits in Mexico, both marine and terrestrial, although it doesn't get talked about as much as USA/Canada and Asia
I'm creating project Tree-Rex, a project to create an interactive phylogenetic map of all currently valid theories on cladograms of dinosauria overlayed from origin to 66 mya. Theropods we've had a really good outline of how larger groups fit since Hendrickx et al 2015, with a lot of movement between specific genus lineages. Ceratopsids are... complicated, to say the least.
Amazing, it's nice to see that Mexico is getting more Paleontology studies and is expanding our knowledge on Paleontology. I hope more of these Mexican Dinosaurs are described in further detail, like Labocania. When it comes to Ceratopsian evolution, Mexico provides an amazing and fundamental role since it shows how Ceratopsians evolved in North America. Additionally, Mexican Dinosaurs can provide information on North American and South American Dinosaurs and their evolution. I hope more Dinosaurs are found in Mexico and are described in further detail. Those are just my personal thoughts and opinions on this hot topic of debate. Amazing video, keep up the good work.
Oh I edge to science alright
Bro… you good?
@@geomy3814very good
These videos are fantastic
EDGE THE BEST ON UA-cam PALEONTOLOGY NUMBER 1 FOREVER
1:43 Velafrons mentioned
Viva el Maastrichtian! Un higo por la Campanian. (Please forgive my Spanish).
A fig for the Campanian?
@@ChiliFrog Yes. That is correct. I am irrationally prejudiced when it comes to Late Cretaceous stages.
screw shark week, this is what we want!
It's amazing the way quite a few species have big false eyes reminiscent of other mimicking animals like some catapilars and peacock butterflies who firstly are trying to startle potential predators and if that fails the fake eyes are attacked away from essential organs, like the real eyes.
These triceratops are truly terrifying if you read the eyes part of a huge scary head.
I find the accompanying background music kinda hilarious, tbh
props to whoever named "Mexichelys", exceedingly good name
Hasn't an Alamosaurus been found in Mexico too? Because I saw something about that a few months ago.
Now that is something I would love to hear about.
I hope more fossils are going to be found in Mexico 😊
These fossils are interesting additional characters to their dinosaur family trees.
i heard recently that early life helped create shales? which then helped make large mountains due to the slipperiness of these rocks... i think they said shales.. or slates i forget
That'll be Extinct Zoo dead plankton creating graphite through extreme heat and pressure.
@@EsmereldaWeatherwax-f1s was it graphite? my bad memory
Thank you ❤
Oh Genial!
Now that I know how strange chasmosaurine evolution got, more questions arise.
Is there a similar trend to be found in the evolution of the centrosaurine ceratopsids?
Did the northern centrosaur lineages contribute to the extinction of the Chasmosaurus-line chasmosaurs?
Did the southern chasmosaurs affect the southern centrosaur lineages, in terms of ecological competition?
Goodie goodie
Extremely funny that Torosaurus doesn't seem to play a major role in this phylogeny. Did i miss it or is this just more evidence against Horner's hypothesis?
Torvo? Do you mean Toro?
Not to be a smartass, but I think you mean Torosaurus. Torvosaurus had been reduced to fossils for over 70 million years by that time. And yes I hate the 'Torosaurus is just a Triceratops' concept that Jack Horner and others propagated, because I think it will be proved wrong.
@@ramongonga1876 yes haha 😂 thank you
@@charlesmartin1121 yeah thanks for the correction! Had a slip up there lol
@@floweryomi5351 No problem. I am constantly misspelling stuff. And yet I turned off my spell check. The mark of true intelligence.
Comment for the algorithm
I want to do fossil exploration in Edmontonian strata in the USA.
35 secs yay
Edge science when goon science shows up 😩
ok so hers my theory what it those 2 Dinos crossed paths after the sea way left and mated creating a different group all together dun dun dun
Funfact: Labocania is carcharodontosaurid
Funfact: there's no consensus on that yet. Lots of researchers think it's a tyrannosaur or a carch, more fossils are needed.
@@EDGEscienceit lived 93.6 mya, have abelisaurid traits and (i quote) "no tyrannosauroid synopomorphies were present"
And carcharodontosaurids with abelisaurids share lots of similarities that at 1 point it was thought that carcharodontosaurids could be abelisauroids
And at Cenomanian age are atleast 2 carcharodontosaurids known to be present in North America
Why it woudnt be carcharodontosaurid when it shows many evidences for it?
@roguetheoutlander8800 so there's no consensus on what it is you're just saying it's a carcharodontosaurid
@@thevenbede767 i said all things that proves its carcharodontosaurid
+
in 2024 phylogeny of carcharodontosauridae family, Labocania is classified as carcharodontosaurid CLOSELY related to Shaochilong
@roguetheoutlander8800 1. That doesn't prove it's a carcharodontosaurid. That's just reasons you think it is
2. Phylogenies change all the time and just because it's new doesn't mean it's consensus
3. I don't know if you understand how paleontology works
Цератопсы это олицетворения развития причёсок у людей
Wait. Where does Torosaurus fit in this paper.
Exactly. This was the one major oversight in an otherwise excellent presentation.
@@charlesmartin1121 yeah. Have people really forget the things massive frill
@@generalspitfire01 I can't wait until the definitive paper which proves Torosaurus is a distinct taxon from Triceratops.
@@charlesmartin1121 Yeah, wasn't Torosaurus found in a different formation than Triceratops, or was it also found in the Hell Creek
@@generalspitfire01 Yes and no. In the Western Interior Basin 67-66 mya, Triceratops horridus/prorsus and Torosaurus latus occur together in every rock unit except the Scollard Formation. Whereas in the Southern Plateau at the same time, Torosaurus utahensis is found in the North Horn Formation, but not Triceratops.
👏👏👏👏👏👏👏
Mexican dinosaur sound sexy
Hello
I wonder what bird we can look to today and say its ancestor was in the ceratopcian lineage, if there is one. Or did they completely die out with the pterosaurs.
Birds are theropods.
so where does Torasaurus come into this mess?
Where's Torosaurus?